Jack



Dec. 25, 1928.

' c. E. BRADBURN JACK ZSheets-Sheet 1 Original Filed Dec. 6, 1926 Dec. 25, 1928. 1,696,520

c. E. BRADBURN JACK Original Filed Dec. 1926 2 Sheets-Sheet. 2

41 I, i 54 W 2 cw'lsEofif'amlU'ngwvemtoz 47 .14

$3M; I 4 v I Patented Dec. 25, 1928.

STATES CURTIS E. BRADBURN, OF GARDEN CITY, KANSAS.

JACK.

Application filed December 6, 1926, Serial Not 153,018. Renewed February 21, 1928.

This invention relates to a jack designed primarily for use in connection with automobiles, the same being, more especially, an improvement upon the structure disclosed in an application filed by me on October 19, 1926,

Serial No. 142,669.

One of the objects of the present invention is to provide means for attachment to a selected part of an automobile structure and adapted to co-operate with the jack to hold it assembled therewith while in use, there being co-operating means for preventing shifting of the jack relative to the engaged portion of the vehicle while said portion is supported in elevated position by the jack.

A further object is to provide a device of this character so constructed that the weight of the supported load will be received directly by the head of the jack While the cooperating interlocking means for holding the.

13.0k fixed relative to the load receives none of the Weight.

Another object is to provide a device of this character which can be used as an at tachment for a jack whereby jacks of different types can be employed.

A still further object is to provide simple and eflicient means for facilitating the positioning of the jack to raise the load.

Another object. is to provide means on the axle or other portion of the vehicle for cooperation with a member on the jack to hold the jack properly assembled with the load, said means being provided with protecting portions for preventing clogging by mud and the like which might interfere with the proper positioning of the jack.

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being 7 understood that changes in the precise embodiment of the invention herein disclosed may be made within the scope of what is claimed, without departing from the spirit of the invention.

the guide channel or member attached to said I axle being shown in section.

Figure 2 is a view similar to Figurel showing the axle supported in elevated position by the jack with the jack lug resting on the head of the jack and the fastening members in interengaging position.

Figure 3 is an end elevation of the guide member, jack lug and other parts attached to the axle.

Figure 4 is a top plan view of the jack head and the fastening tongue.

Figure 5 is a top plan view of the guide member detached.

Figure 6 is a view partly in elevation and partly in section showing the interengaging fastening means of a slightly modified construction.

Figure 7 is a section through a rear axle showing another modified construction of guide member, a portion of the jack being shown.

FigureS is an end elevation of the member shown in Figure 7. I

Figure 9 is a vertical longitudinal section through a combined guide and fastening member for attachment to a front axle, a portion of the jack being shown.

Figure 10 is an end elevation of the guide member shown in Figure 9 and of the adj acent portien of the axle.

Figure 11 is a View similar to Figure 9 showing a modified arrangement with the. combined guide and fastening member arranged on top of the axle.

Figure 12 is an end elevationof the modified structure illustrated in Figure 11,. V

Figure 13 is a view partly in elevation and part1 in section showin a uide rodconthat itcan be removed when desired.

nected to and extending from the tongue on the jack, only a portion of the tongue being illustrated.

Figure 1% is a side elevation of the jack with the guide rod extended therefrom and used for guiding the jack to proper position relative to the jack lug and axle.

Figure 15 is a detail view of a portion of another modified form of the device.

Referring to the figures by characters of reference 1 designates a split collar extending around and clamped firmly upon the axle A of an automobile. The collar illustrated is the one ordinarily employed for connecting a spring to the axle but it is to be understood that, if desired, a special form of collar can be used independently of the one illustrated. in any case it is desirable to have a jack lug 2 extended from the collar and a transverse rib -3 or other form of projection is extended from the lowermost portion of the collar as shown in Figures 1, 2 and 3. If preferred, however, a groove t can be formed in the lowermost portion oi the collar as illustrated in Figure 6.

Supported beneath the collar 1 is a guide 5 which, in the structure shown in Figures 1, 3 and 5, is formed of sheet metal bent to provide a U-shaped channel 6 having angular upwardly extending wings '7 at the sides thereof terminating in lateral flanges S bolted to the bottom of the collar 1.

A acl: which can be of any preferred con struction has been indicated at J and includes an upwardly movable shank 9 provided with a head 10 for engagement with the lug 2. Fitted on this shank 9 is a collar 11 adapted to be held securely to the shank by a set screw 12 although, obviously, any other desired means may be employed for holding the collar 11 firmly on the shank but in such away collar has a tongue 13 extending radially therefrom, this tongue being angular 1n cross Section and having a tapered free end Shown at 14. In the structure illustrated in Figures 1 and 4c the tongue is provided with a transverse groove 15 or other form of recess arranged to receive the rib or projection 3 when the jack is in use. However, should the collar 1 be provided with a groove as shown at 4 in Figure 6, a rib or other projection 16 may be provided on the tongue for engagement in the groove.

A socket 17 is formed in the free end of the tongue 13 and can be screw threaded. This socket is adapted to receive the screw threaded end 18 of a guide rod 19 which can be made of interfit-ting detachably connected sections as shown in Figure 13 and the free end of which may be provided with a hook 20 if so desired although this is not essential. This structure has been shown in detail in Figure 13,

In practice the collar 11 is adjusted to a The position on shank 9 whereby the tongue 13 can be inserted longitudinally into the channel 6 vithout causing head 10 to come against the jack lug 2. This tongue is also so situated with reference to the head 10 that the head will engage the lug 2 before the tongue 13 can contact with the bottom of collar 1 or else simultaneously with such contact. In other words the parts are so proportioned that while rib 3 can be received by groove 15 during the elevation of the head 10 of the jack, the weight of the load will not be transmitted to the tongue 13 but will, instead, be received directly by the head 10 from the lug 2. This arrangement of the parts has been shown in Figure 2 wherein the ack is shown with the axle supported thereby in raised position and with the fastening portions 3 and 15 interlitting. Consequently the jack cannot by any possibility slip out of engagement with the lug 2 because of, the interengagement of rib 3 with the wall of groove 15. Furthermore the tongue 13 is angular in cross section and cannot rotate in the channel 6 because it has sufficiently snug lit to prevent lateral tilting or rotation. Consequently there is no danger of the jack shifting in any direction away from proper position relative to the load after said load has once been shifted, for example, from the position shown in Figure 1 to the position shown in Figure 2.

he structure illustrated in Figures 1, 2 and 3 is designed primarily for use in connection with one type of rear axle. In Figures 7 and 8 a slightly modified arrangement has been illustrated, this consisting of a block 21 having an angular opening '22 extending there through for the reception of the tongue 23 ex-' tending from the shank 2 1 of the jack. This block has an angular lug 25 at one end olfset upwardly from the opening 22 and designed to engage the head of the jack while the tongue 23 is seated in the opening Block 21 is attached to the axle by means of U-bolts 26 which extend over the axle B and are fastened in laterally extending ears 2'? extending from side plates 28secured to the block 21. The tongue 23 and the top wall of the opening 22 are provided with'the cooperating interfitting portions heretofore de scribed whereby the tongue is held against withdrawal while the jack is supporting a load. In the structure illustrated this int-er fitting means includes arib 29 and a groove 30. In Figures 9 and 10 there has been shown a structure designed primarily tor use in connection with the frontaxle C of an au tomobile. This structure includes a bottoni plate 31 having a depending channel 32 con stituting a guide members A top plate 33 is mounted on the plate 31 and bridges channel 32. This top plate has a lug at extending from one edge thereof and olfset upwardh so as to properly engage the head of a jack while the tongue 35 extending from the jack is seatllU lla)

ed in the channel 32. U-bolts 36 straddle the axle C and extend through the plates 33 and 31 so as to hold them fixed relative to the axle and pressed together tightly. The interfitting portions, including a rib 37 and a groove 38 are carried by the plate 33 and the tongue 35 and are for the purpose already explained.

Should it be desired to mount the guide member on top of the front axle, a structure such as illustrated in Figures 11 and 12 could be utilized. This includes a bottom plate 39 which rests on axle D and supports a top plate 40 having an upstanding channeled portion 41 constituting a guide member. A jack lug 42 is extended from one end of the channeled portion 41 and is offset upwardly so as to engage and rest on the head of a jack while the tongue 43 of said jack is extending into the channeled portion 41. While thus positioned interfitting portions such as heretofore described will serve to hold the parts assembled. These interfitting portions including, in the present instance, a rib 44 and a groove 45. U-bolts 46 embrace the axle D and are attached to the plates 40 and 39 so as to hold them fixed relative to the axle.

It will be noted that in all of the structures described the same primary result is obtained, namely, the application of the load directly to the head of the jack and the fastening of the jack to the load by the use of interfitting portions. Obviously wherever desired the ar rangement of the ribs and grooves can be reversed as shown, for example, in Figure 6 or inter-fitting means other than ribs and grooves might be employed.

Should it be difficult to place the jack in proper position relative to the axle because of the distance between the axle and the back of the machine, the rod 19 could be employed to advantage. As shown in Figure 13 the sections of the rod can be assembled end to end and one end of the rod secured in the recess or socket 17 in the tongue of the jack. One end of the rod can then be placed in the guide, such as channel 6 after which the jack can be thrust toward the axle. Rod 19 will act as a guide to direct the tapered end of the tongue 13 into the channel 6 so that the groove 15 will thus be brought to position directly under rib 3, this position being determined by contact of the collar 11 with the guide member 5.

It might be stated that the rod 19 can also be used in connection with the various other forms of guides that have been illustrated and in every instance the collar at the end of the tongue and which engages the shank of the jack will come against the guide when the fastening members are brought-to proper position to interengage.

For the purpose of preventing mud or the like from clogging the openings in the guides, hinged closures 4'? such as illustrated in Figure 14 can be employed. These closures can be maintained normally closed against the open faces of the guides by springs 48,'and 49. In the structure illustrated the spring 49 is so located as to hold the closure 47 in either closed or open position. placing the hook 20 or rod 19 in engagement with closure 47 said closure can be swung outwardly and downwardly to open position as shown afterwhich the rod can be directed into the guide and will thrust against and open the door 47.

The entire structure can be made very light and compact and as the rod 19 is made of separable sections the structure can be conveniently stored in an automobile.

In the structures thus far described the tongue has been shown extended from the jack for insertion in a guide carried by the vehicle. It has been found that, under some conditions, this arrangement may be reversed as shown, for example, in Figure 15. In this figure the axle 50 which has a jack lug 51 connected thereto and extending therefrom is also provided with a tongue 52 corresponding with the tongues extended from the jack in the other structures. The head 53 of the jack has an opening constituting a guide for the reception of the tongue 52 and in the structure illustrated the bottom of this opening may be formed with a groove 54 for the reception of a rib or other projection 55 de pending from the tongue. As the tongue is located under the jack lug it will be apparent that when the jack is positioned on the tongue 52 as shown in Figure15 and then elevated, the head of the jack will come against the lug 51 so as to raise the vehicle axle and at the same time the projection 55 will become seated in the groove 54 so that the ack will thus be locked to the vehicle as long as the weight is supported by the jack. Obviously of course the arrangement of the groove and projection 55 can be reversed if so desired and in view of other illustrations of this arrangement it is not deemed necessary to show the same in connection with the structure illustrated in Figure 15.

Vhat is claimed is: l

1. The combination with an axle, a jack lug extending therefrom, and a guide having an opening, of a jack including a movable head for engagement with the lug, a supplemental member extendingfrom the ack and slidable therewith along a supporting surface for insertion into the guide opening, and a guide rod extending from said member in the direction of movement thereof for insertion into the guide opening in advance of said member.

2. The combination with an axle, a guide connected thereto, and means for closing the guide, of a. jack including a movable portion adjustable to elevate and support the axle, tongue carried by said portion, and a rod detachably connected to and extending from Thus by sertible into the guide, and means carried by the tongue, and guide and movable into en gagement with each other by the lifting action of the jack for fastening the jackto the guide While subjected to the Weight of its load. I i

In testimony that I claim the foregoing as my own, 1 have hereto affixed my signature.

' CURTIS E. BRADBURN 

